#1F56A5#1F56A5

#1F56A5 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.2% C 0.140 H 258.2°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#1F56A5
RGB	rgb(31, 86, 165)
HSL	hsl(215, 68%, 38%)
HSV	hsv(215, 81%, 65%)
CMYK	cmyk(81.2%, 47.9%, 0%, 35.3%)
CIE-LAB	lab(37.23, 11.85, -47.65)
CIE-LCH	lch(37.23, 49.11, 283.97°)
OKLab	oklab(46.25% -0.0287 -0.1369)
OKLCH	oklch(46.25% 0.14 258.2)
XYZ	xyz(10.6819, 9.6622, 36.8920)
Luminance	0.0966 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F56A5 #A56E1F

analogous

#1F99A5 #1F56A5 #2B1FA5

triadic

#1F56A5 #A51F56 #56A51F

tetradic

#1F56A5 #A51F99 #A56E1F #1FA52B

square

#1F56A5 #A51F99 #A56E1F #1FA52B

split-complementary

#1F56A5 #A52B1F #99A51F

monochromatic

#0C203E #153B71 #1F56A5 #2A71D7 #5E93E1

Accessibility & contrast

On white

7.16

#1F56A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1F56A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F56A5

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F56A5	#FFFFFF	#000000	##FFFFFF
##1F56A5	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A5EA8

Deuteranopia (green-blind)

#0052A3

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f56a5;
/* rgb */ color: rgb(31, 86, 165);
/* oklch */ color: oklch(46.2% 0.140 258.2);

Tailwind

colors: {
  custom: {
    50: '#7185c0',
    500: '#1f56a5',
    950: '#000000',
  },
}

SCSS

$custom: #1f56a5;
$custom-light: #7185c0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f56a5",
  "rgb": {
    "r": 31,
    "g": 86,
    "b": 165
  },
  "hsl": {
    "h": 215.373,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.46247,
    "c": 0.1399,
    "h": 258.2
  },
  "luminance": 0.09663
}

Semantic roles & 50–950 ramp

primary

#1F56A5

secondary

#C5995B

accent

#A43DEB

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F56A5

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →